Modular Scalable Test Fixtures
(photo credit: sparkfun)
By using the same sets of microcontrollers, it becomes easier to generate new tests reusing existing approaches, hardware, firmware, and user interface.
Automatic PCB and Test Firmware Generation
(photo credit: adafruit)
Use an open source toolchain to output circuit board files, generate links PCB fabrication houses as well as places to purchase pogo pins, microcontrollers, screws, standoffs, LEDs, OLEDs, etc.
(photo credit: micromo)
Flying Probes have superior flexibility over pogo pin fixtures. They are slower and much more expensive, but that's made up by being reprogrammable and test many different types of PCBs.